Net wealth taxes aim at moving the tax burden towards higher personal wealth. Assets and liabilities have to be collected and valuated. In this field, new effective valuation procedures introduced for inheritance and gift taxes could be adopted, overseas tax evasion has to be impeded. Since personal wealth is strongly concentrated to the top percentiles of the population a net wealth tax could raise substantial revenue even if relatively high personal allowances are granted. With a personal allowance of Euro 1 million we estimate a tax base of Euro 1,880 billion. A tax rate of 0.5 percent could thus raise annual revenue of Euro 9.4 billion, or 0.37 percent of GDP. Capital income and wealth taxation should be coordinated with respect to the economic effects and the tax policy issues involved.